Show:
Rivers
Rivers pt.2
Rivers pt.3
Rivers pt.4
Rivers pt.5
100
this provides us with food, energy, recreation, transportation routes, and of course water for irrigation and for drinking.
What is a river.
100
The two streams meet at a ________
What is a confluence.
100
The fast moving river picks up pieces of ___________ and carries them downstream, breaking them into smaller and smaller pieces of sediment.
What is rocks.
100
Most of the sediment deposition occurs in the ________.
What is plains.
100
a river flows into another large body of water, such as an ______ or, _______ or, ________.
What is a bay, lake, or ocean.
200
Rivers begin in ________ or _________.
What is a mountains or a hill
200
It takes many tributary streams to form a ________
What is a river
200
By carving and moving rocks, running water changes the earth's surface even more than catastrophic events such as ________ or ________.
What is a earthquake or volcanoe.
200
The wide and flat valley of the plains takes thousands of ________ to create.
What is years
200
The transition between river and ocean, bay or lake is known as a _______.
What is a delta.
300
where rain, water, or snowmelt collects and forms tiny streams called _________.
What is a gully
300
A river grows _______ as it collects water from more tributaries.
What is larger.
300
Leaving the high elevations of the mountains and hills and entering the ________ the river slows down.
What is a flat plain.
300
Here, the river flows slowly, making S-shaped curves which are known as ________.
What is meanders.
300
The Nile River meets the ________ _____ in Egypt, called the Nile Delta.
What is the Mediterranean Sea.
400
This grows larger when they collect more water and become streams themselves or meet streams and add to the water already in the stream.
What is a gully.
400
Streams usually form _______ in the higher elevations of mountains and hills.
What is a river
400
Once the river slows down, the pieces of sediment have a chance to fall to the river bottom and be ________.
What is deposited.
400
When the river floods, the river will spread out over many miles on either side of its ________.
What is banks.
400
From the mountains to the delta, a river does not just flow it changes the surface of the ________.
What is the Earth.
500
When one stream meets another and they merge together, the smaller stream is known as a ________.
What is a tributary.
500
The areas of depression between hills or mountains are known as _______.
What is a valley
500
These rocks and pebbles are worn smooth and get ______ as the water continues flowing.
What is smaller
500
During floods, the valley is smoothed and tiny pieces of sediment are deposited, sculpting the valley and making it even _________ and more flat.
What is smoother.
500
It cuts rocks, moves boulders, and deposits sediments, constantly attempting to carve away all of the _________ in its path.
What is mountains.